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Network Security

This document examines some of the different aspects of network security and how they work to keep our information safe from people with malicious intent. This paper will divulge into the general information behind the different networks out there and the reasons why we need network security. Next, the different ways network security is implemented and how they are managed will be explored more indepth. In the end a concluding thoughts on the information provided will be summarized. Attached will be an appendix that will discuss some real world ethical issues that occur in the lives of many people every day need to be discussed further.
Network Security
Introduction

Network security is one of the most important aspects of any business with confidential information. Security on the Internet and on Local Area Networks is now at the forefront of computer-related issues. The technical jargon of the day is information warfare and network security, and there are valid reasons for their rise in importance. Throughout the evolution of networking and the Internet, the threats to information and networks have risen dramatically. Many of these threats have become cleverly exercised attacks causing damage or committing theft. As a result, the public has become more conscious of the need for network security and so too has the government. This awareness has led to the discovery that the predominant source of these threats comes from within the network. Protective tools and techniques exist to combat security threats; nevertheless, only with the proper implementation of an internal security solution, such as Host-based Intrusion Detection, will they succeed. Consequently, this paper is a discussion of network security, its history, the threats and responses to those threats, and the use of Host-based Intrusion Detection as a means of implementing a secure network.

1 General Information

1.1 Types of Networks
The classification of a network depends mainly on the...